CN109518362A - Sewing machine - Google Patents
Sewing machine Download PDFInfo
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- CN109518362A CN109518362A CN201811100276.1A CN201811100276A CN109518362A CN 109518362 A CN109518362 A CN 109518362A CN 201811100276 A CN201811100276 A CN 201811100276A CN 109518362 A CN109518362 A CN 109518362A
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- Prior art keywords
- sewing machine
- sewing
- carrier
- feeding
- fine
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B27/00—Work-feeding means
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The present invention provides a kind of sewing machine, carries out fine and closely woven sewing by existing sewing machine.Sewing machine (10) includes feeding adjusting body (62), is set to the inside of sewing machine stand (20), correspondingly makes to feed spacing variation with rotational angle；And feed reversing bar (72), its outside for being set to sewing machine stand, link with feeding adjusting body, actuator (81) are included in sewing machine (10), are used to make feeding adjusting body be rotated such that the feeding spacing as fine and closely woven sewing via feed reversing bar (72)；And carrier (82,83), the output of actuator is transferred to feed reversing bar, actuator and carrier are configured to the outside of sewing machine stand.As a result, only by installing actuator, carrier in the external of sewing machine stand, it will be able to realize fine and closely woven sewing.
Description
Technical field
The present invention relates to the sewing machines being adjusted by the amount of feeding of the feeding adjusting body to sewn object.
Background technique
Existing sewing machine includes bottom and top feed mechanism, transmits up and down direction from sewing machine electromotor to feeding tooth
Reciprocating action；And horizontal feed mechanism, the reciprocating action of horizontal direction is transmitted, horizontal feed mechanism has feeding adjusting
Body, the feeding adjusting body can correspondingly change the stroke of the reciprocating action of horizontal direction with rotational angle.
Moreover, being linked with feeding adjusting turntable, feed reversing bar etc. in the feeding adjusting body, which passes through
Manually rotation process makes the rotational angle of feeding adjusting body change and the feeding spacing of sewn object is adjusted, this is reversed
Feed bar by be manually operated make feeding adjusting body rotational angle change make sewn object direction of feed reverse (for example,
Referring to patent document 1).
Patent document 1: Japanese 2008-194134 bulletin
In addition, sewing machine in recent years is required the residual of the remaining line of cloth after the end position of sewing carries out tangent line
End is shortened as far as possible, is implemented and is configured tangent line cutter to and the close equal improvement of pin hole.
On the other hand, if the residual end of the remaining line of cloth after tangent line shortens, line is easy from final knotting point
It falls off and bursts forth, therefore in order to prevent the phenomenon, the end position developed in sewing is set as minimum widith for spacing is fed
And implement the fine and closely woven sewing of spininess sewing.
In addition, needing when carrying out fine and closely woven sewing in existing sewing machine in sewing machine new equipment switching mechanism, the switching
Mechanism is used to that feeding spacing to be switched to minimum widith in arbitrary timing, but switching mechanism is newly being configured at sewing machine stand
When internal, it is difficult to ensure its configuration space needs to form opening in the external of sewing machine stand, which feeds to seam when external
The component for the feeding adjusting body transmitting rotational action in rack of threading passes through, and transformation is bothersome, exists and is possible to lubricate from opening
The problems such as oil leakage.
Summary of the invention
It is an object of the present invention to be readily formed the sewing machine for being able to carry out fine and closely woven sewing from existing sewing machine.
The invention that technical solution 1 is recorded is a kind of sewing machine, is included
Feeding adjusting body is set to the inside of sewing machine stand, correspondingly makes to feed spacing variation with rotational angle；And
Feed reversing bar is set to the outside of sewing machine stand, links with the feeding adjusting body,
The sewing machine is characterized in that, comprising:
Actuator is used to that the feeding adjusting body to be made to rotate via the feed reversing bar, to make it fine and closely woven seam
The feeding spacing of system；And
The output of the actuator is transferred to the feed reversing bar by carrier,
The actuator and the carrier are configured to the outside of the sewing machine stand.
The invention that technical solution 2 is recorded is characterized in that, in the sewing machine that technical solution 1 is recorded,
The carrier links via long hole with the feed reversing bar.
The invention that technical solution 3 is recorded is characterized in that, in the sewing machine that technical solution 2 is recorded,
The carrier includes the first carrier, links with the feed reversing bar；And second carrier, it will
The output of the actuator is transferred to first carrier.
The invention that technical solution 4 is recorded is characterized in that, in the sewing machine that technical solution 3 is recorded,
Second carrier is rotatably supported by eccentric shaft,
It, being capable of operation to being transmitted from from the actuator to the feed reversing bar by the rotation process of the eccentric shaft
Amount is adjusted.
The invention that technical solution 5 is recorded is characterized in that, in the sewing machine that technical solution 4 is recorded,
The feed reversing bar is provided with the pin of protrusion,
The pin is linked with the long hole that loose chimerism is formed with the one end in first carrier,
The one end of the other end of first carrier and second carrier links,
The other end of second carrier and the actuator link,
In the central portion of second carrier, the eccentric shaft is rotatably supported.
The invention that technical solution 6 is recorded is characterized in that, in the sewing machine described in any one of technical solution 1 to 3,
With Transfer tectonics, which carries out the operating quantity transmitted from the actuator to the feed reversing bar
It adjusts.
The effect of invention
The present invention can be readily formed the sewing machine for being able to carry out fine and closely woven sewing from existing sewing machine.
Detailed description of the invention
Fig. 1 is the front view of sewing machine involved in embodiments of the present invention.
Fig. 2 is the structure chart in plan view only illustrating the main part in sewing machine base portion.
Fig. 3 is the oblique view of feeding adjusting mechanism.
Fig. 4 is the right side view for the sewing machine for removing motor cover.
Fig. 5 is the oblique view of the right part for the sewing machine for removing motor cover.
Fig. 6 is to indicate that realizes by eccentric shaft is transferred to the tune of the operating quantity of feed reversing bar from fine and closely woven sewing solenoid
The explanatory diagram of section movement.
Fig. 7 (A) to Fig. 7 (C) is the explanatory diagram for successively indicating the adjusting method of feeding spacing of fine and closely woven sewing.
Fig. 8 (A) to Fig. 8 (C) is the adjusting method for successively indicating the and then feeding spacing of the fine and closely woven sewing of Fig. 7 (C)
Explanatory diagram.
The explanation of label
10 sewing machines
20 sewing machine stands
21 sewing machine base portions
22 upstanding body portions
23 sewing machine arms
30 container mechanisms
40 cloth feeding mechanisms
41 feeding teeth
43 bottom and top feed axis
46 horizontal feed axis
60 feeding adjusting mechanisms
62 feeding adjusting bodies
64 feed shelters
69 backstitch solenoid
72 feed reversing bars
721 feed reversing plates
80 fine and closely woven sewing switching mechanisms
81 fine and closely woven sewing solenoids (actuator)
811 plungers
82 first carriers
821 long holes
83 second carriers
84 brackets
85 eccentric shafts
851 shaft bodies
852 axle portions
86 fixing screws
212 mechanism covers
T workbench
The opening portion T1
Specific embodiment
[overall structure of the embodiment of invention]
In the following, based on Fig. 1 to Fig. 8, the embodiment of the present invention will be described in detail.Fig. 1 is embodiment party of the invention
The front view of sewing machine 10 involved in formula, Fig. 2 be in plan view by sewing machine stand 20 cloth feeding mechanism 40 and
The structure chart that feeding adjusting mechanism 60 illustrates, Fig. 3 are the oblique views of feeding adjusting mechanism 60.
Above-mentioned sewing machine 10 includes suture needle reciprocating mechanism (not shown), moves up and down suture needle；Seam (not shown)
It threads electric motor, becomes the driving source of suture needle reciprocating mechanism；Container mechanism 30, by full rotation kettle 31 by it is offline with it is slotting
Enter to the thread entanglement of suture needle；Cloth feeding mechanism 40, with moving up and down matchingly to as the quilt on needle plate for suture needle
The dress material of sewing object is conveyed；The amount of feeding of cloth feeding mechanism 40 is adjusted in feeding adjusting mechanism 60；And seam
Rack of threading 20 is supported above-mentioned each structure.
[sewing machine stand]
Sewing machine stand 20 includes sewing machine base portion 21, is integrally located at lower part in sewing machine 10；Longitudinal body portion
22, in one end (right side described below) the upright setting upwards of the length direction in sewing machine base portion 21；And not
The sewing machine arm 23 of diagram extends from the upper end in longitudinal body portion 22 to direction identical with sewing machine base portion 21 and sets
It sets (referring to Fig. 3).
In addition, being detachably equipped with will stitch in the unilateral side (opposite side of sewing machine arm 23) in longitudinal body portion 22
The motor cover 221 of electric motor of threading covering.In the face side of the motor cover 221, equipped with for carrying out and sewing machine 10
Sewing act it is relevant it is various setting input operation panel 222.
In addition, in the state that sewing machine 10 to be set to the upper surface of horizontal workbench T, sewing machine base portion 21
Length direction becomes level.Moreover, in the following description, the length direction in sewing machine base portion 21 is set as Y direction, it will
The horizontal and direction orthogonal with Y direction is set as X-direction, and the direction orthogonal with X-axis and Y direction is set as Z-direction.Separately
Outside, for a direction in Z-direction, upside is set as "upper", downside is set as "lower", in X-direction
For one direction, operator is set as " proximal lateral " (or cloth direction of feed upstream relative to direction locating for sewing machine
Side), its opposite side is set as " distal side " (or cloth direction of feed downstream side), for a direction in Y direction,
Left side is set as " left side " from operator side, right side is set as " right side ".
Sewing machine 10 is set to the workbench T with the opening portion T1 stored to sewing machine base portion 21.Workbench T
Opening portion T1 and the overlook view in sewing machine base portion 21 when shape it is roughly equal, be stored in by sewing machine base portion 21
The upper surface in the upper surface of workbench T and sewing machine base portion 21 becomes substantially in same level in the state of the T1 of opening portion
The state of arrangement.
In the lower face side of workbench T and the lower section of opening portion T1, fixed equipment has the bottom cover 211 of sewing machine and remembers below
The mechanism cover 212 for the fine and closely woven sewing switching mechanism 80 stated.Sewing machine 10 stores sewing machine bottom in the opening portion T1 of workbench T
In the state of portions 21, the lower part in sewing machine base portion 21 is covered by bottom cover 211, and fine and closely woven sewing switching mechanism 80 is stored in mechanism
Lid 212.
In addition, sewing machine 10 on workbench T, can skew around Y-axis distal side, in this case, become sewing machine
The bottom of base portion 21 is exposed from the opening portion T1 of workbench T, and fine and closely woven sewing switching mechanism 80 is whole also to be exposed from mechanism cover 212
State, they become towards operator side state, be able to carry out the upkeep operation for them.
[suture needle reciprocating mechanism and sewing machine electromotor]
Suture needle reciprocating mechanism includes axis, configures in the inside of sewing machine arm 23, is revolved by sewing machine electromotor
Turn driving, and configures along the y axis；Needle bar keeps suture needle in lower end；And crank mechanism, by upper axis
Rotary driving force be transformed to the reciprocating driving force moved up and down and be transferred to needle bar.These are well known structures, therefore are omitted
Diagram.
Moreover, fixed equipment has bevel gear near the right part of upper axis, in the bottom and top feed axis of cloth feeding mechanism 40
43 also fixed equipment have bevel gear 56.Moreover, being provided with the longitudinal axis (not shown) along Z-direction in longitudinal body portion 22, lead to
The bevel gear in the setting of the upper and lower end of the longitudinal axis is crossed, the power of upper axis is transferred to bottom and top feed axis 43.
In addition, it is configured with axis, the longitudinal axis, each bevel gear for being set to bottom and top feed axis 43 on these in longitudinal body portion 22,
Therefore in order to which the movement for carrying out them well is transmitted, lubricating oil is fed in longitudinal body portion 22.
In addition, the method that the power of upper axis is transferred to bottom and top feed axis 43 can not also be utilized into bevel gear mechanism, and it is sharp
With synchronous belt etc..
[container mechanism]
Container mechanism 30 includes full rotation kettle 31 above-mentioned, is set to the inside of the left end in sewing machine base portion 21；Kettle axis
32, full rotation kettle 31 is kept in one end, and along the state of Y direction sewing can be rotatably supported at
In machine base portion 21；And speed increasing gear 33, it is set to the other end of kettle axis 32.
The speed increasing gear 33 and the bottom and top feed axis 43 of the cloth feeding mechanism 40 described below for being set to kettle axis 32 are set
The driving gear 48 set engages, so that applying the rotation of two speeds to kettle axis 32 from bottom and top feed axis 43.
In addition, container mechanism is not limited to full rotation kettle, it is also possible to the sewing carried to semi-rotating kettle, horizontal container
Machine.
[cloth feeding mechanism]
Cloth feeding mechanism 40 includes feeding tooth 41, from the disengaging of the opening portion of needle plate that dress material is defeated to prescribed direction
It send；Feeding station 42 keeps feeding tooth 41；Bottom and top feed axis 43, in order to make (the Z axis along the vertical direction of feeding station 42
Direction) back and forth carry out spinning movement；Horizontal feed axis 46, in order to keep feeding station 42 reciprocal along direction of feed (X-direction)
And carry out reciprocating rotation；As the eccentric rod 50 of movement conversion rod, the rotary driving force of bottom and top feed axis 43 is passed through into bias
Cam 49 is transformed to the driving force of reciprocating rotation and is applied to horizontal feed axis 46；Horizontal feed arm 47, by horizontal feed axis
46 reciprocating rotation movement is transferred to feeding station 42；And transmission lever 45, the rotary driving force of bottom and top feed axis 43 is passed through
Eccentric cam 44 is transformed to back and forth move up and down and be transferred to feeding station 42.
Bottom and top feed axis 43 can be rotatably supported along the y axis in sewing machine base portion 21, with kettle axis above-mentioned
32 compare configuration in the direction of feed upstream side (proximal lateral) of cloth.As described above, bottom and top feed axis 43 passes through bevel gear 56
The torque of full rotation is entered from upper axis.
In addition, the left part of bottom and top feed axis 43 extends to the lower section of needle plate, in the left part, fixed equipment has eccentric cam
44.Moreover, the lower end of transmission lever 45 links via the eccentric cam 44 with bottom and top feed axis 43.The transmission lever 45 is under it
End can rotatably keep circular eccentric cam 44, and upper end rotatably links with the one end of feeding station 42.
The transmission lever 45 is located at the connecting end of bottom and top feed axis 43 generally above with the connecting end portion of feeding station 42, so if
Bottom and top feed axis 43 rotates, then by eccentric cam 44 with two times of stroke of its eccentricity by reciprocating movement along the vertical direction
Driving force be applied to the one end of feeding station 42.
Also, also fixed equipment has eccentric cam 49 near the right part of bottom and top feed axis 43, via the eccentric cam
49 are linked with eccentric rod 50.The eccentric rod 50 can rotatably keep circular eccentric cam 49 in one end, the other end
Portion is substantially stretched out in the horizontal direction.Therefore, if bottom and top feed axis 43 rotate, the other end by eccentric cam 49 with
Two times of stroke of its eccentricity carries out reciprocating action in the horizontal direction.
On the other hand, in the horizontal feed axis 46 configured in parallel with bottom and top feed axis 43, fixed equipment it is oriented up and down into
The rotation wrist 51 stretched out to 43 side of axis.Moreover, the pivoting end of the other end of eccentric rod 50 and rotation wrist 51 is by feeding adjusting
The connecting rod of the feeding adjusting body 62 of mechanism 60 links.Reciprocating rotation is applied to horizontal feed axis 46 from bottom and top feed axis 43 as a result,
Movement, moreover, the width for the reciprocating rotation angle being applied can be adjusted by feeding adjusting body 62.In addition, about feeding adjusting
Body 62 is described below.
Reciprocal drive of the horizontal feed axis 46 from left part via horizontal feed arm 47 and to the transmitting of feeding station 42 along the x axis
Power.
The fixedly connected left part in horizontal feed axis 46 of the base end part of horizontal feed arm 47, swing end with generally towards
State and feeding station 42 upwards links.
Feeding station 42 is configured in the lower section of needle plate, and the end of proximal lateral connects via transmission lever 45 with bottom and top feed axis 43
Knot, the end of distal side link via horizontal feed arm 47 with horizontal feed axis 46.In addition, in the X-direction of feeding station 42
The top fixed equipment in middle position has feeding tooth 41.
Feeding station 42 is applied reciprocating driving force from one end in above-below direction as a result, from the other end with identical
Period is applied the reciprocating driving force of direction of feed.Moreover, by being synthesized to these reciprocating driving forces, thus flat along X-Z
Face carries out long circular motion.With the feeding station 42, feeding tooth 41 also carries out long circular motion, by the upper of the oval motion profile
The front end that tooth 41 is fed when portion region is protruded upwards from the opening portion of needle plate, can be conveyed to cloth.
[feeding adjusting mechanism]
Fig. 2 is the oblique view of feeding adjusting mechanism 60.Feeding adjusting mechanism 60 is as shown in Figures 1 and 2, comprising: feeding is adjusted
Save body 62；Rotating fulcrum 63, it is fixedly connected in feeding adjusting body 62, it configures along the y axis；Feed shelter 64, is fed
The adjusting of amount operates；As the feeding adjusting screw 65 of feeding adjusting component, moved forward and backward by feed shelter 64；As
The feeding adjusting platform 66 of cam part, is rotated by the abutting of feeding adjusting screw 65, generates angle change；Connecting rod
67, the pivoting end of end and feeding adjusting platform 66 links thereon；First fixed input wrist 68, it is fixedly connected in rotating fulcrum
63, and link with the lower end of connecting rod 67；Backstitch solenoid 69, make feeding adjusting body 62 rotate and be switched to reversely into
To state；Changer lever 71, it is fixedly connected in fulcrum 71a, and link with the plunger for backstitching solenoid 69；Feed reversing bar
72, it is set to the right part of rotating fulcrum 63；And fine and closely woven sewing switching mechanism 80, execute fine and closely woven sewing.
The other end of eccentric rod 50 above-mentioned and the pivoting end of rotation wrist 51 link via connecting rod, pass through eccentric rod
50, it rotates wrist 51 and the connecting rod of their connections is constituted into four section link mechanisms.
The other end of the eccentric rod 50 of a section in 62 pairs of feeding adjusting body four sections as above-mentioned four sections link mechanism
The moving direction of point of contact between connecting rod is limited.Feeding adjusting body 62 is rotated by rotating around it fulcrum 63, thus
The moving direction of point of contact between the other end and connecting rod of eccentric rod 50 can be changed around Y-axis.Moreover, if the connection
The moving direction of point changes, then the angular range of the reciprocating rotation of horizontal feed axis 46 changes, and can change by feeding tooth 41
The feeding spacing of generation.
In addition, feeding adjusting body 62 rises from feeding spacing is set as 0 shaft angle degree (being set as neutral point), if to one turn
Dynamic direction rotation can then be fed with forward direction and change feeding spacing, rotated if lighted from neutrality to another rotation direction,
Feeding spacing can be changed with feed reversing.
The upper end of connecting rod 67 and feeding adjusting platform 66 link, the pivoting end of lower end and the first fixed input wrist 68
Connection.It is moved up and down moreover, connecting rod 67 passes through, so as to rotate feeding adjusting body 62 via rotating fulcrum 63.
Feeding adjusting platform 66 with across feeding adjusting screw 65 two sides have positive feeding cam surface and reversely into
The cam part 66b for the cam surface given, no matter in the case where which cam surface is abutted with the front end of feeding adjusting screw 65, all
The direction around fulcrum 66a along the y axis is determined corresponding to its abutted position.Moreover, if passing through the rotation of feed shelter 64
Operate and move feeding adjusting screw 65 along the x axis, then with the abutted position of cam surface change, feeding adjusting platform 66 around
The direction of fulcrum 66a changes.
Moreover, the upper end of the pivoting end of feeding adjusting platform 66 and connecting rod 67 links, therefore pass through feed shelter 64
Rotation process moves up and down connecting rod 67, and the angle around rotating fulcrum of feeding adjusting body 62 can be adjusted,
Thereby, it is possible to change the feeding spacing of feeding tooth 41.
In addition, one in two cam surfaces of feeding adjusting platform 66 abuts with the front end of feeding adjusting screw 65
In the case of, the feeding spacing of the positive direction of feeding tooth, another and feeding adjusting screw in two cam surfaces can be changed
In the case that 65 front end abuts, the feeding spacing of the opposite direction of feeding tooth can be changed.
In general, can be maintained a cam surface by spring (not shown) and (change the cam of the feeding spacing of positive direction
Face) abutted with the front end of feeding adjusting screw 65, by backstitching the driving of solenoid 69, be switched to another cam surface with into
The state abutted to the front end for adjusting screw 65.
Backstitch solenoid 69 be equipped on longitudinal body portion 22 distal side face outside, the front end of plunger 691 with
Changer lever 71 links, and changer lever 71 can be made around fulcrum 71a rotation along the y axis.
Changer lever 71 is the crank throw having around the fulcrum 71a arms 711,712 rotated, and 711 upward direction of arm is stretched
Out, and its pivoting end links with the plunger 691 for backstitching solenoid 69.
In addition, another arm 712 rearward stretches out, and in its pivoting end equipped with pin 713 along the y axis.It should
Pin 713 is abutted with the notch formed in connecting rod 67 from below.
Therefore, the proximally side entrance of plunger 691 of solenoid 69 is backstitched, thus changer lever 71 is in the Shi Xiangshun from left
Clockwise rotates and pin 713 boosts connecting rod 67.Thereby, it is possible to the cam surfaces and feeding tune from feeding adjusting platform 66
The state that the front end of screw 65 abuts is saved, the shape that another cam surface is abutted with the front end of feeding adjusting screw 65 is switched to
State.
That is, if making to backstitch the plunger 691 of solenoid 69, proximally side enters, can be by cloth direction of feed from forward direction
Feeding is switched to feed reversing.Moreover, sew start when, when sewing finishing, make to backstitch the plunger 691 of solenoid 69 forwards
Into thus, it is possible to carry out backstitching sewing.
In addition, two cam surfaces of feeding adjusting platform 66, rotated by 67 feeding adjusting platform 66 of connecting rod, thus from
The abutted position of the front end of feeding adjusting screw 65 is switched to another feed reversing by the cam surface of one positive feeding
In the case where cam surface, set out the shape of respective cam surface so that the feeding spacing of positive feeding and feed reversing at
For same widths.That is, even if can also remain set by the rotation process of feed shelter 64 in the case where being switched to feed reversing
Fixed feeding spacing.
The end on the right side of rotating fulcrum 63 above-mentioned is faced out with the right side in longitudinal body portion 22 from sewing machine stand 20
The state of portion's protrusion is configured, and is equipped with feed reversing bar 72 in the projecting ends of the rotating fulcrum 63.
The feed reversing bar 72 includes feed reversing plate 721, and fixed equipment is in the right part of rotating fulcrum 63；And
Operating member 722 is rotatably supported relative to rotating fulcrum 63.
Feed reversing plate 721 is stretched out from the proximally facing side of rotating fulcrum 63, in its projecting end, with operating member 722
The input protrusion 721a that lower part abuts is protruded towards left.The extension elongation of the feed reversing plate 721 proximally side is short, reversely into
Give plate 721 the whole inside for being stored in motor cover 221.
Operating member 722 stretches out until the outside of motor cover 221 from the proximally facing side of rotating fulcrum 63, and
It bends and is stretched out towards left.
The part stretched out to the left of the operating member 722, in the more proximal lateral in the face of the proximal lateral in longitudinal body portion 22
It can swing up and down, by carrying out rotation operation downwards, so as to switch the direction of feed of cloth feeding mechanism 40
For feed reversing.
As described above, operating member 722 can be rotated relative to rotating fulcrum 63, even if keeping operating member 722 downward
Side's rotation, also can not directly be such that rotating fulcrum 63 rotates, but in the case where operating member 722 to be rotated downwards to operation,
It is abutted from top with the input protrusion 721a of feed reversing plate 721,63 turns of rotating fulcrum can be made via feed reversing plate 721
It is dynamic.
In the case where rotating downwards until stopping the operating member 722, the first fixed input wrist 68 is from turning
Dynamic fulcrum 63 boosts connecting rod 67, rotates feeding adjusting platform 66, the abutted position of the front end of feeding adjusting screw 65 from
The cam surface of forward direction feeding is switched to the cam surface of feed reversing, cloth feeding mechanism 40 can be switched to feed reversing shape
State.In this case, the size of the feeding spacing of the feeding spacing and feed reversing of positive feeding is also equal.
In addition, operating member 722 makes rotating fulcrum 63 carry out rotation, which is because, making via feed reversing plate 721
In the case where being switched to feed reversing by the work above-mentioned for backstitching solenoid 69, operating member 722 do not link and
Carry out lowering action sharply.
[fine and closely woven sewing switching mechanism]
Fig. 4 is the right side view of the sewing machine 10 in the state of removing motor cover 221, and Fig. 5 is the seam under the state
Thread machine 10 right part oblique view.
As shown, switching in the outside of the right part in the sewing machine base portion 21 of sewing machine stand 20 configured with fine and closely woven sewing
Mechanism 80.
Fine and closely woven sewing switching mechanism 80 includes the fine and closely woven sewing solenoid 81 as actuator, is used to make feeding adjusting
Body 62 is rotated, to make it the feeding spacing of fine and closely woven sewing；As the first carrier 82 of carrier and the second transmitting
The output of fine and closely woven sewing solenoid 81 is transferred to feed reversing bar 72 by body 83；Bracket 84, to fine and closely woven sewing solenoid 81
It is supported；And as the eccentric shaft 85 for adjusting body, it is used to pass to from fine and closely woven sewing solenoid 81 to feed reversing bar 72
The operating quantity passed is adjusted.
Bracket 84 is installed on compared with the upper surface in the sewing machine base portion 21 in the right part in sewing machine base portion 21
Lower section is floppily supported fine and closely woven sewing solenoid 81 and the arms stretched out to the right.
In addition, bracket 84 relative to the right part in sewing machine base portion 21 outer surface formed screw hole (not shown) and
It is fastened by screws.The screw hole is formed as having bottom, and has no through in the inside in sewing machine base portion 21, prevents from screw hole generation
Oil leak.
Fine and closely woven sewing solenoid 81 plunger 811 upward in the state of screw be anchored on bracket 84.Fine and closely woven sewing spiral shell
The plunger 811 of spool 81 in common sewing in the state kept out of the way downwards, in fine and closely woven sewing, protrude upwards and into
The switching advanced to spacing.
In the upper end of the plunger 811, fixed equipment has the pin 812 protruded to the right, the pin 812 with described below
The notch 831 for the long hole shape that the end of second carrier 83 is formed is chimeric, carries out when plunger 811 protrudes to the second carrier 83
Assign rotational action.
In addition, the plunger 811 of fine and closely woven sewing solenoid 81 is up and down being penetrated through the main part for storing coil,
It is protruded downwards from the lower end of main part the lower end of plunger 811.
First carrier 82 is linkage component, and portion is formed with long hole 821 at one end, from the feed reversing of feed reversing bar 72
The pin 721b that plate 721 protrudes to the right is concatenated with loose insert state.In addition, the other end of the first carrier 82 can be around
Y-axis rotationally links with the one end of the second carrier 83.
As described above, one end and the first carrier 82 link second carrier 83, the other end and fine and closely woven sewing spiral shell
The plunger 811 of spool 81 links.Moreover, the central portion of the second carrier 83 can rotationally be supported by eccentric shaft 85 around Y-axis.
Therefore, if the plunger 811 of fine and closely woven sewing solenoid 81 protrudes upwards, the other end of the second carrier 83
It rotates upward, the first carrier 82 linked with the one end of second carrier 83 is pulled down downwards, feed reversing
The feed reversing plate 721 of bar 72 is rotated downwards.The rotation of feeding adjusting body 62 by rotating fulcrum 63 as a result, is adjusted
Section is the feeding spacing for feeding closely spaced fine and closely woven sewing than script.
Fig. 6 is the operation transmitted from fine and closely woven sewing solenoid 81 to feed reversing bar 72 for indicating to realize by eccentric shaft 85
The explanatory diagram of the adjusting movement of amount.
Eccentric shaft 85 includes shaft body 851, is inserted into the second carrier 83；And branch axle portion 852, relative to axis
Main body 851 and bias (referring to Fig. 8 (B)), which is inserted into the supported hole (not shown) of bracket 84.
Moreover, the branch axle portion 852 of eccentric shaft 85 is by being set to the fixing screws 86 (referring to Fig. 7 (C)) of bracket 84, it is tight
Gu fixed without rotating.
Moreover, eccentric shaft 85 carries out rotation process and going out 86 spiral shell of fixing screws, thus the bias with branch axle portion 852
Amount correspondingly, can be such that the second carrier 83 is rotated, thereby, it is possible to move the first carrier 82 in above-below direction
It adjusts.
For example, as shown in the double dot dash line of Fig. 6, if passing through the rotation process of eccentric shaft 85, by the first carrier 82 to
Top is mobile to be adjusted, then the upper end of the long hole 821 abutted with pin 721b generates the gap of width d relative to pin 721b.
As a result, protruding the decline shifting for being given to the first carrier 82 by the plunger 811 of fine and closely woven sewing solenoid 81
Momentum is shortened from the state before adjusting with width d, with amount corresponding thereto, be given to feed reversing bar 72 it is reversed into
It is also reduced to the rotational angle of plate 721.
That is, by carrying out rotation process to eccentric shaft 85, so as to fine and closely woven to being set by fine and closely woven sewing solenoid 81
The feeding spacing of sewing is increased and decreased adjusting.
[adjusting method of the feeding spacing of fine and closely woven sewing]
Fig. 7 (A) to Fig. 8 (C) is the explanatory diagram for successively indicating the adjusting method of feeding spacing of fine and closely woven sewing.Based on these
The adjusting method is illustrated.
Firstly, the sewing machine stand 20 for the sewing machine 10 being arranged in workbench T is distally skewed (Fig. 7 (A)).
The lower part in the sewing machine base portion 21 stored in the opening portion T1 of workbench T as a result, is exposed, fine and closely woven sewing switching
Mechanism 80 is drawn out from mechanism cover 212 and exposes on workbench T.
Next, feed shelter 64 carries out rotation adjusting in a manner of feeding spacing when becoming the fine and closely woven sewing of progress.It is fine and closely woven
The feeding spacing of sewing is preferably set to be greater than 0 and width as small as possible.It exemplifies herein as an example and is set as 0.5
The case where [mm] (Fig. 7 (B)).
Feeding adjusting body 62 turns to the position of the target feeding spacing as fine and closely woven sewing, feed reversing bar 72 as a result,
Feed reversing plate 721 linkage and to 21 side of sewing machine base portion rotate.The end of the long hole 821 of first carrier 82 as a result,
Width d (the ginseng in the gap of the pin 721b of (upper end in the state that sewing machine stand 20 does not skew) and feed reversing plate 721
According to Fig. 6) expand.
Herein, the rotation that 86 spiral shell of fixing screws of fine and closely woven sewing switching mechanism 80 goes out and carries out eccentric shaft 85 can be grasped
Make (Fig. 7 (C)).
Moreover, the plunger 811 of fine and closely woven sewing solenoid 81 is extruded by manual working from lower end to protrusion direction
(Fig. 8 (A)).The second carrier 83 rotates counterclockwise as a result, and the first carrier 82 is to 21 sidesway of sewing machine base portion
It is dynamic, the end (upper end in the state that sewing machine stand 20 does not skew) of the long hole 821 of the first carrier 82 and reversely into
It is reduced to the width d in the gap of the pin 721b of plate 721.
Moreover, manually rotating eccentric shaft 85, the position for carrying out the first carrier 82 and the second carrier 83 adjusts (figure
8 (B)), be aligned the first carrier 82 long hole 821 end (upper end in the state that sewing machine stand 20 does not skew) and
The width d in the gap of the pin 721b of feed reversing plate 721 becomes 0 position.
Also, fixing screws 86 are fastened into (Fig. 8 (C)), eccentric shaft 85 is fixed.
Then, the extrusion state of the plunger 811 of fine and closely woven sewing solenoid 81 is back to original backoff state, makes to sew
Proximally side rotates rack 20, erected state originally.
Also, feed shelter 64 is back to the feeding spacing (such as 3 [mm]) of common sewing.
Then, in the case where carrying out sewing operations, for example, if before carrying out the operating pedal connecting with sewing machine 10
It steps on, then sewing machine electromotor starts and starts to sew with the feeding spacing of common sewing.
Moreover, in sewing finishing position, if counter step on by operating pedal carries out the input of thread cutting action, backstitch
Solenoid 69 works, and protrudes plunger 691, before a cam surface and feeding adjusting screw 65 for feeding adjusting platform 66
The state of end abutment rises, and is switched to the state that another cam surface is abutted with the front end of feeding adjusting screw 65, thus will
Cloth direction of feed is switched to feed reversing from forward direction feeding and carries out backstitching sewing with the needle number set out.
Moreover, completing backstitching sewing and backstitching solenoid 69 as after OFF, fine and closely woven sewing solenoid 81 works,
Plunger 811 is set to protrude and rotate the second carrier 83 counterclockwise, the decline of the first carrier 82.At this point, being adjusted to
The width in the gap of the pin 721b of the long hole 821 and feed reversing plate 721 of the first carrier 82 becomes between the feeding of fine and closely woven sewing
Away from, therefore feeding spacing of the feed reversing plate 721 from the position of the feeding spacing (3 [mm]) of common sewing to fine and closely woven sewing
The position of (0.5 [mm]) is endowed rotation, and feeding adjusting body 62 turns to appropriate location.
Moreover, with the feeding spacing of fine and closely woven sewing, to provide that needle number carries out fine and closely woven sewing after, sewing machine electromotor stops
And thread cutting action is carried out, sewing is completed.
[effect of embodiment illustrates]
Above-mentioned sewing machine 10 cuts the fine and closely woven sewing with fine and closely woven sewing solenoid 81 and first and second carrier 82,83
The overall structure of structure 80 of changing planes is configured at the outside of sewing machine stand 20, and via the reversed of the exterior arrangement in sewing machine stand 20
Feed bar 72 carries out the switching action to the feeding spacing of fine and closely woven sewing.
Do not have the existing sewing machine for the function of carrying out fine and closely woven sewing accordingly, with respect to script, only by by fine and closely woven seam
The external function that can add fine and closely woven sewing of switching mechanism 80 processed.
In addition, fine and closely woven sewing switching mechanism 80 carries out cutting to the feeding spacing of fine and closely woven sewing by feed reversing bar 72
Move work, therefore does not need to be formed the processing of opening to access for the inside to sewing machine stand 20 etc., even if
In the case where having used lubricating oil in sewing machine stand 20, also can opposite direction outside leakage inhibited.In addition, fine and closely woven installing
When sewing switching mechanism 80, it can not need to prevent the sealing of oil leak from processing.
In addition, the first carrier 82 of the fine and closely woven sewing switching mechanism 80 of sewing machine 10, via long hole 821 with reversely into
Link to the feed reversing plate 721 of bar 72, therefore the position of pin 721b is adjusted in the range of long hole 821, thus, it is possible to
It is enough arbitrarily to adjust the feeding spacing of fine and closely woven sewing.
In addition, the carrier of fine and closely woven sewing switching mechanism 80 includes the first carrier 82, connect with feed reversing bar 72
Knot；And second carrier 83, the output of fine and closely woven sewing solenoid 81 is transferred to the first carrier 82, thus with fine and closely woven seam
Solenoid 81 processed is compared by the structure that a carrier operates feed reversing bar 72, can be improved fine and closely woven sewing spiral shell
The freedom degree of configuration in the X-direction of spool 81.
It therefore, can will be thin in the case where sewing machine 10 that such as sewing machine stand 20 can be rotated relative to workbench T
Close joint solenoid 81 configures as closely as possible with fulcrum side when rotating sewing machine stand 20 relative to workbench T.
As described above, if the fulcrum side of fine and closely woven sewing solenoid 81 and sewing machine stand 20 is close, by sewing machine stand
In the case that 20 skew, the radius that fine and closely woven sewing solenoid 81 rotates becomes smaller, therefore can reduce in workbench T formation
The width of the opening portion for fine and closely woven sewing switching mechanism 80 in the T1 of opening portion.
Therefore, the opening portion T1 of workbench T can be reduced and prevent the reduction of intensity, the operation of the upper surface of workbench T
Space also expands.
Also, it can not be only hidden, be used for opening portion by motor cover 221 in the case that T1 becomes larger in opening portion
The lid hidden for the opening portion of fine and closely woven sewing switching mechanism 80 in T1 needs in addition setting, but passes through diminution opening portion T1
And above-mentioned lid can not be needed, reduce the triviality of components number, the opening and closing operation for reducing lid etc..
In addition, the second carrier 83 of fine and closely woven sewing switching mechanism 80 is rotatably supported by eccentric shaft 85, therefore logical
The rotation process for crossing eccentric shaft 85, the behaviour transmitted from fine and closely woven sewing solenoid 81 to the feed reversing plate 721 of feed reversing bar 72
Work amount can be adjusted, and be can easily be done the adjusting operation of the feeding spacing in fine and closely woven sewing, be can be realized mentioning for workability
It is high.
[other]
In the above-described embodiment, it exemplifies and passes through the adjusting operation of the feeding spacing of fine and closely woven sewing to the second carrier
The rotation process of 83 eccentric shafts 85 being supported and the case where carry out, but not limited to this.
Bracket 84 is set as to carry out position adjusting in above-below direction for example, can also use, the height with bracket 84
The Transfer tectonics that correspondingly the feeding spacing of fine and closely woven sewing is adjusted.
In addition, similarly, also can using relative to bracket 84 can by fine and closely woven sewing solenoid 81 in above-below direction into
Line position sets adjusting, the adjusting structure that correspondingly the feeding spacing of fine and closely woven sewing is adjusted with the height of fine and closely woven sewing solenoid 81
It makes.
About the height adjustment of bracket 84, fine and closely woven sewing solenoid 81, also can be set to them by along the vertical direction
Long hole be able to carry out mobile adjusting, be fixed by screw.In addition, the upper and lower of bracket 84, fine and closely woven sewing solenoid 81
To movement, the periphery cam of eccentric cam etc. can also be made to abut with bracket 84, fine and closely woven sewing solenoid 81, to cam carry out
It operates and carries out height adjustment.
In addition, in the above-described embodiment, showing the example equipped with fine and closely woven sewing switching mechanism 80 in sewing machine for covering chain stitch
Son, but all sewing machines of the outside for feed reversing bar to be set to sewing machine stand 20 can switch fine and closely woven sewing
Mechanism 80 is carried.
In addition, in the above-described embodiment, if showing the anti-input for stepping into row thread cutting action by operating pedal,
Solenoid 69 is backstitched to work, after carrying out backstitching sewing with the needle number set out, fine and closely woven sewing solenoid 81 works,
To provide that needle number carries out the example of fine and closely woven sewing, but also can be set to after the input of thread cutting action, without backstitch sewing and
It is to carry out fine and closely woven sewing.
In this case, if counter step on by operating pedal carries out the input of thread cutting action, fine and closely woven sewing helical
Pipe 81 works, with the feeding spacing of fine and closely woven sewing, to provide that needle number carries out fine and closely woven sewing after, sewing machine electromotor stops
And thread cutting action is carried out, sewing is completed.
Claims (6)
1. a kind of sewing machine, includes
Feeding adjusting body is set to the inside of sewing machine stand, correspondingly makes to feed spacing variation with rotational angle；And
Feed reversing bar is set to the outside of sewing machine stand, links with the feeding adjusting body,
The sewing machine is characterized in that, comprising:
Actuator is used to that the feeding adjusting body to be made to rotate via the feed reversing bar, to make it fine and closely woven sewing
Feed spacing；And
The output of the actuator is transferred to the feed reversing bar by carrier,
The actuator and the carrier are configured to the outside of the sewing machine stand.
2. sewing machine according to claim 1, which is characterized in that
The carrier links via long hole with the feed reversing bar.
3. sewing machine according to claim 2, which is characterized in that
The carrier includes the first carrier, links with the feed reversing bar；And second carrier, it will be described
The output of actuator is transferred to first carrier.
4. sewing machine according to claim 3, which is characterized in that
Second carrier is rotatably supported by eccentric shaft,
By the rotation process of the eccentric shaft, can to from the actuator to the operating quantity that the feed reversing bar transmits into
Row is adjusted.
5. sewing machine according to claim 4, which is characterized in that
The feed reversing bar is provided with the pin of protrusion,
The pin is linked with the long hole that loose chimerism is formed with the one end in first carrier,
The one end of the other end of first carrier and second carrier links,
The other end of second carrier and the actuator link,
In the central portion of second carrier, the eccentric shaft is rotatably supported.
6. sewing machine according to any one of claim 1 to 3, which is characterized in that
With Transfer tectonics, which adjusts to from the actuator to the operating quantity that the feed reversing bar transmits
Section.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017179708A JP2019054902A (en) | 2017-09-20 | 2017-09-20 | sewing machine |
| JP2017-179708 | 2017-09-20 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109518362A true CN109518362A (en) | 2019-03-26 |
| CN109518362B CN109518362B (en) | 2022-03-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811100276.1A Active CN109518362B (en) | 2017-09-20 | 2018-09-20 | Sewing machine |
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| Country | Link |
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| JP (1) | JP2019054902A (en) |
| CN (1) | CN109518362B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054760A (en) * | 2006-04-14 | 2007-10-17 | Juki株式会社 | Sewing machine |
| CN101240483A (en) * | 2007-02-09 | 2008-08-13 | Juki株式会社 | Sewing machine |
| CN101864645A (en) * | 2009-04-20 | 2010-10-20 | Juki株式会社 | Cloth feeding device of sewing machine |
| CN106835531A (en) * | 2016-12-24 | 2017-06-13 | 杰克缝纫机股份有限公司 | A kind of close joint method of sewing machine |
-
2017
- 2017-09-20 JP JP2017179708A patent/JP2019054902A/en active Pending
-
2018
- 2018-09-20 CN CN201811100276.1A patent/CN109518362B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054760A (en) * | 2006-04-14 | 2007-10-17 | Juki株式会社 | Sewing machine |
| CN101240483A (en) * | 2007-02-09 | 2008-08-13 | Juki株式会社 | Sewing machine |
| JP2008194134A (en) * | 2007-02-09 | 2008-08-28 | Juki Corp | Sewing machine |
| CN101864645A (en) * | 2009-04-20 | 2010-10-20 | Juki株式会社 | Cloth feeding device of sewing machine |
| CN106835531A (en) * | 2016-12-24 | 2017-06-13 | 杰克缝纫机股份有限公司 | A kind of close joint method of sewing machine |
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| Publication number | Publication date |
|---|---|
| JP2019054902A (en) | 2019-04-11 |
| CN109518362B (en) | 2022-03-08 |
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